The 2004 Infiniti I35 is a mid-size luxury sedan that served as the flagship model for Infiniti during its production run from 2002 to 2004. Based on the Nissan Maxima, it offered a compelling blend of performance, luxury, and value. The I35 is known for its strong V6 engine and comfortable, well-appointed interior, making it a popular choice for buyers seeking a premium experience without a premium price tag. Key trims included the base I35 and the more feature-rich I35 Premium.
The Good
The 2004 Infiniti I35 shines with its potent V6 engine offering spirited performance for both spirited drives and confident highway merging. Its plush, quiet cabin delivers exceptional comfort, while its refined design exudes understated luxury. For practical buyers, the I35 presents excellent value and a history of solid reliability, making it a sensible yet enjoyable ownership proposition.
The Bad
Potential buyers of the 2004 Infiniti I35 should be aware of common issues such as transmission problems, particularly in earlier models, and potential wear and tear on suspension components. Aging electronics, including the infotainment system and climate control, can also be a concern. Regular maintenance records are crucial.
2004 Infiniti I35: Quick Overview
- Engine Options: The 2004 Infiniti I35 came standard with a 3.5-liter V6 engine.
- Horsepower: This V6 engine produced 255 horsepower.
- Torque: It generated 246 lb-ft of torque.
- Transmission: A 4-speed automatic transmission was the only offering.
- Fuel Economy: Estimated EPA fuel economy for the 2004 I35 was around 18 mpg in the city and 25 mpg on the highway.
- 0-60 Times: Acceleration from 0-60 mph was typically in the mid-to-high 6-second range, providing brisk performance for its class.
- Towing Capacity: The 2004 Infiniti I35 was not designed for towing, and therefore, does not have a specified towing capacity.
- Trim-Level Features:
Base I35: Standard features included leather upholstery, power-adjustable front seats, automatic climate control, a premium Bose audio system, heated front seats, a power sunroof, and alloy wheels. It also came equipped with keyless entry, cruise control, and power accessories (windows, locks, mirrors).
I35 Premium: This trim typically added features such as a navigation system, a multi-disc CD changer, and potentially a rear-seat entertainment system (though less common). It often enhanced the comfort and convenience aspects of the base model. Both trims featured standard safety equipment like anti-lock brakes, front-side airbags, and traction control.
2004 Infiniti I35 Specifications
Vehicle Information
| Year | 2004 |
| Make | Infiniti |
| Model | I35 |
| Trim | - |
| Style | - |
| Type | Sedan |
| Category | Compact Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | SMYRNA |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | VQ35DE |
| Engine Size | 3.5L |
| Engine Cylinders | 6 |
| Transmission | 4-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 4-Speed |
| Drivetrain | Front-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | - |
| Invoice Price | - |
| Delivery Charges | - |
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What Problems Does the 2004 Infiniti I35 Have?
The 2004 Infiniti I35, while generally considered a reliable luxury sedan, does have some frequently reported issues that potential buyers should be aware of. One of the most commonly cited problems relates to the automatic transmission. Owners have reported instances of rough shifting, slipping gears, and premature failure, especially as the vehicles age and accumulate mileage. It's important to note that while not exclusive to the 2004 model, this concern has been observed across the I35's production run. Another area of concern can be the suspension system, with reports of worn-out bushings and struts leading to a less comfortable ride and potential noise issues. The vehicle's climate control system, including the blower motor and A/C compressor, can also be a source of repair needs over time. Electrical gremlins, though not overwhelmingly frequent, have also been mentioned, affecting components like power windows, door locks, and the infotainment system. Regarding recalls, owners should always check the NHTSA website for any outstanding safety recalls for the specific vehicle they are considering. While there haven't been widespread, model-defining recalls for the 2004 I35, individual safety campaigns can occur. Long-term reliability can be significantly impacted by how well the vehicle has been maintained. Regular fluid changes, especially for the transmission, and proactive addressing of minor issues can go a long way in ensuring the I35 remains a dependable car. For a used I35, a thorough pre-purchase inspection by a mechanic familiar with Infiniti/Nissan vehicles is highly recommended to identify any potential costly repairs looming.
How long will the 2004 Infiniti I35 last?
Based on owner data and typical maintenance, the 2004 Infiniti I35 can reasonably be expected to provide 200,000 to 250,000 miles of service, and in some cases, even more. Its long-term durability is significantly influenced by how diligently it has been maintained. The robust 3.5-liter V6 engine is known for its longevity when oil changes are performed regularly. However, the automatic transmission can be a weaker point over time, with some units requiring replacement or extensive repairs around the 150,000-mile mark if not properly serviced. Suspension components will naturally wear and require attention over the years. With consistent care, including timely fluid flushes and addressing minor issues promptly, the I35 can remain a reliable daily driver for many years, offering excellent value for its extended service life.
What Technology & Safety Features are Included?
The 2004 Infiniti I35 offered a respectable array of technology and safety features for its era, aiming to provide a premium experience. In terms of entertainment, the I35 came standard with a Bose audio system, known for its clear sound quality. Higher trims or optional packages could include a multi-disc CD changer for more music options. While a touchscreen navigation system was available as an option, it was not a standard feature and might be considered dated by today's standards. Driver-assistance features were relatively basic for 2004. Standard safety equipment included anti-lock brakes (ABS), front-seat side-impact airbags, and traction control, designed to enhance stability and control. Power windows, power locks, and cruise control were standard convenience features. Optional features could extend to a power sunroof and, for some models, a rear-seat DVD entertainment system, although this was less common. In terms of safety ratings, the 2004 Infiniti I35 performed well in crash tests conducted by the Insurance Institute for Highway Safety (IIHS). It earned an "Acceptable" rating in frontal offset crashes, which was considered good for its time. The National Highway Traffic Safety Administration (NHTSA) also provided ratings, typically showing good performance in frontal and side impacts. It's important to remember that automotive safety technology has advanced significantly since 2004, so while the I35 was safe for its time, it lacks modern advanced driver-assistance systems like adaptive cruise control, lane departure warning, or automatic emergency braking.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2004 Infiniti I35 Prices and Market Value
When new, the 2004 Infiniti I35 had an MSRP that generally ranged from around $33,000 to $38,000, depending on the trim level and optional features. As a luxury sedan from that era, it experienced significant depreciation typical of vehicles in its class. Today, the used market prices for a 2004 Infiniti I35 typically range from $2,000 to $6,000, heavily influenced by mileage, overall condition, maintenance history, and geographic location. Factors affecting resale value include the prevalence of reported issues like transmission problems; a well-maintained vehicle with documented service records will command a higher price. The popularity of used luxury sedans in good condition also plays a role. Because of its age, condition and mileage are paramount in determining its current value.
2004 Infiniti I35 Cost of Ownership
Owning a 2004 Infiniti I35 can be considered moderately economical for a luxury sedan, especially on the used market. Insurance costs will vary based on driver profile and location but are generally in line with other mid-size luxury sedans. Fuel costs are average for a V6 engine, around 18-25 mpg. Maintenance costs can be moderate; while routine services are comparable to other vehicles, repairs for luxury components or potential transmission issues can be more expensive. Repair costs are a key factor; while reliable with good maintenance, fixing specialized Infiniti parts can be pricier than for mainstream brands. Overall, it's not the cheapest to own, but offers good value if well-maintained.
2004 Infiniti I35 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
20 gallons
City Mileage
17 miles/gallon
Highway Mileage
24 miles/gallon
2004 Infiniti I35 Safety Rating
NHTSA
2004 Infiniti I35 Insurance
Insurance for a 2004 Infiniti I35 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Infiniti I35 Compare to Other Sedan?
The 2004 Infiniti I35 competed in the premium mid-size sedan segment against rivals such as the Lexus ES 330, Acura TL, and BMW 3 Series (though the latter is often considered a sportier, smaller class). In terms of performance, the I35's 255-horsepower V6 was a strong contender, often outperforming the Lexus ES 330 in acceleration, and rivaling the Acura TL's power. Its focus was more on comfortable cruising than sharp handling, differentiating it from the sportier BMW 3 Series. Feature-wise, the I35 offered a good balance of luxury appointments and technology for its price point, often matching or exceeding what the Lexus ES 330 provided as standard, especially regarding the Bose audio system and leather interior. The Acura TL, however, often boasted more advanced technology for its time. Reliability is where the I35 faces scrutiny. While the engine is generally robust, the automatic transmission has been a known weak point for some owners, an area where the Lexus ES 330 historically held a stronger reputation for long-term dependability. The Acura TL also generally boasts good reliability. Price-wise, the I35 was positioned as a value-oriented luxury option, often costing less than comparably equipped Lexus or Acura models when new, and its used market price remains very competitive. Alternatives: For those prioritizing ultimate reliability and a smoother ride, the 2004 Lexus ES 330 is a strong competitor, though it may offer slightly less power. The 2004 Acura TL provides a good mix of performance and features and generally good reliability. If a more engaging driving experience is desired, a BMW 3 Series from a similar year would be an alternative, though often at a higher price point and with potentially higher maintenance costs. Overall, the 2004 Infiniti I35 remains a compelling option for those seeking strong performance and luxury at an affordable used price, provided they are mindful of the potential transmission concerns and find a well-maintained example.
Final Verdict: Is the 2004 Infiniti I35 a Good Sedan?
The 2004 Infiniti I35 is ideal for budget-conscious buyers seeking a comfortable, well-equipped, and powerful luxury sedan without the premium price tag. It's a great option for those who prioritize a smooth ride and a refined interior for daily commuting or longer journeys. It is absolutely worth buying if found in good condition with a documented maintenance history, especially concerning the transmission. Given its age, purchasing it new is not an option. The used market is where its value lies. Buyers should focus on lower-mileage examples with evidence of regular servicing. The I35 Premium trim offers added luxury and convenience features that enhance the ownership experience. While potential transmission issues warrant careful inspection, a well-maintained I35 can offer years of reliable and enjoyable service for a fraction of the cost of newer luxury vehicles.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.